Ponding water on flat roof covered with tree debris after heavy rain.
14+ Flat Roof Sagging Images. This is one of the best series. The beams have been attacked by woodworm and are the cause of the sagging.
It has sagged over the years and now rests appr. 2 lower in the middle than the edges. Buying the best roof shingles is hard.
If there is a leak in the if the interior of the roof is sagging in any spots, showing signs of water damage, showing dark spots.
The master bedroom is covered by a flat roof. There is no evidence of sagging with the header. Leaks are an inevitable outcome for 99% of flat roofs in service today. The beams have been attacked by woodworm and are the cause of the sagging.